| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Simulations/Experiments Integration for Next Generation Hypersonic Materials
|
| Presentation Title |
Mesoscale Thermomechanical Modeling of Woven Carbon Composites |
| Author(s) |
Sean Skweres, Peter Creveling, Scott Roberts, Michael Sangid |
| On-Site Speaker (Planned) |
Sean Skweres |
| Abstract Scope |
Improving the survivability of woven carbon composites in extreme thermal environments warrants a deeper understanding of the physical factors influencing thermomechanical properties and damage initiation. Composite material behavior significantly depends on constituent material properties and weave topology. This study leverages mesoscale Finite Element (FE) to resolve stress and strain fields around carbon fiber tows and various defects embedded in a polymer matrix. We have developed an automated process for generating representative volume elements using a textile geometry preprocessor, TexGen. Manufacturing defects including pores, matrix cracks, and delamination along bimaterial interfaces are introduced into the nominal weave geometry through a host of meshing tools. Afterwards, FE is used to assess the virtual microstructure in terms of hotspot formation pertaining to damage initiation. This presentation discusses the effects of weave geometry and defects on thermomechanical properties and damage initiation mechanisms. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Computational Materials Science & Engineering, Modeling and Simulation |